DEFINITIONS AND KEY POINTS FOR OBJECTIVES OF PHYLUM ARTHROPODS
| DEFINITIONS AND KEY POINTS FOR OBJECTIVES | |
| TERMS | DEFINITIONS |
| Schizocoelous coelom | The coelom thrilled by the splitting of mesoderm is call Schizocoelous |
| Tagmatization | The regional specialization is called tagmatization. |
| Epicuticle | It is the outermost lay er. It is made up of a waxy lipoprotein |
| Procuticle | The procuticle is composed of chitin and several kinds of |
| Chitin | Chitin is a tough leathery polysaccharide. |
| Sclerotization – | Sclerotization is a tanning process in which layers of protein is chemically cross-linked with one another. |
| SensiIla | The cuticle is modified to form sensilla. SensiIla is present in the form of pegs. bristles. and Lenses |
| Fedysis | The periodic shedding of exoskeleton for growth in arthropods
is called molting process called ecdysis. ‘ |
| Metamorphosis | The radical change in body form and physiology from
immature larval stage to adult is called metamorphosis., |
| Biramous. appendages | In this case. each appendage has two branches). |